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Diffstat (limited to 'arch/ppc/kernel/syscalls.c')
-rw-r--r--arch/ppc/kernel/syscalls.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/arch/ppc/kernel/syscalls.c b/arch/ppc/kernel/syscalls.c
deleted file mode 100644
index 127f040de9de..000000000000
--- a/arch/ppc/kernel/syscalls.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * arch/ppc/kernel/sys_ppc.c
- *
- * PowerPC version
- * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * Derived from "arch/i386/kernel/sys_i386.c"
- * Adapted from the i386 version by Gary Thomas
- * Modified by Cort Dougan (cort@cs.nmt.edu)
- * and Paul Mackerras (paulus@cs.anu.edu.au).
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/PPC
- * platform.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/syscalls.h>
-#include <linux/mman.h>
-#include <linux/sys.h>
-#include <linux/ipc.h>
-#include <linux/utsname.h>
-#include <linux/file.h>
-#include <linux/unistd.h>
-
-#include <asm/uaccess.h>
-#include <asm/ipc.h>
-#include <asm/semaphore.h>
-
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-int
-sys_ipc (uint call, int first, int second, int third, void __user *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- ret = -ENOSYS;
- switch (call) {
- case SEMOP:
- ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
- second, NULL);
- break;
- case SEMTIMEDOP:
- ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
- second, (const struct timespec __user *) fifth);
- break;
- case SEMGET:
- ret = sys_semget (first, second, third);
- break;
- case SEMCTL: {
- union semun fourth;
-
- if (!ptr)
- break;
- if ((ret = access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
- || (ret = get_user(fourth.__pad, (void __user *__user *)ptr)))
- break;
- ret = sys_semctl (first, second, third, fourth);
- break;
- }
- case MSGSND:
- ret = sys_msgsnd (first, (struct msgbuf __user *) ptr, second, third);
- break;
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
-
- if (!ptr)
- break;
- if ((ret = access_ok(VERIFY_READ, ptr, sizeof(tmp)) ? 0 : -EFAULT)
- || (ret = copy_from_user(&tmp,
- (struct ipc_kludge __user *) ptr,
- sizeof (tmp)) ? -EFAULT : 0))
- break;
- ret = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp,
- third);
- break;
- }
- default:
- ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
- second, fifth, third);
- break;
- }
- break;
- case MSGGET:
- ret = sys_msgget ((key_t) first, second);
- break;
- case MSGCTL:
- ret = sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
- break;
- case SHMAT: {
- ulong raddr;
-
- if ((ret = access_ok(VERIFY_WRITE, (ulong __user *) third,
- sizeof(ulong)) ? 0 : -EFAULT))
- break;
- ret = do_shmat (first, (char __user *) ptr, second, &raddr);
- if (ret)
- break;
- ret = put_user (raddr, (ulong __user *) third);
- break;
- }
- case SHMDT:
- ret = sys_shmdt ((char __user *)ptr);
- break;
- case SHMGET:
- ret = sys_shmget (first, second, third);
- break;
- case SHMCTL:
- ret = sys_shmctl (first, second, (struct shmid_ds __user *) ptr);
- break;
- }
-
- return ret;
-}
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-int sys_pipe(int __user *fildes)
-{
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- if (copy_to_user(fildes, fd, 2*sizeof(int)))
- error = -EFAULT;
- }
- return error;
-}
-
-static inline unsigned long
-do_mmap2(unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- struct file * file = NULL;
- int ret = -EBADF;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- if (!(flags & MAP_ANONYMOUS)) {
- if (!(file = fget(fd)))
- goto out;
- }
-
- down_write(&current->mm->mmap_sem);
- ret = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
- if (file)
- fput(file);
-out:
- return ret;
-}
-
-unsigned long sys_mmap2(unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-unsigned long sys_mmap(unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, off_t offset)
-{
- int err = -EINVAL;
-
- if (offset & ~PAGE_MASK)
- goto out;
-
- err = do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-out:
- return err;
-}
-
-/*
- * Due to some executables calling the wrong select we sometimes
- * get wrong args. This determines how the args are being passed
- * (a single ptr to them all args passed) then calls
- * sys_select() with the appropriate args. -- Cort
- */
-int
-ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp)
-{
- if ( (unsigned long)n >= 4096 )
- {
- unsigned long __user *buffer = (unsigned long __user *)n;
- if (!access_ok(VERIFY_READ, buffer, 5*sizeof(unsigned long))
- || __get_user(n, buffer)
- || __get_user(inp, ((fd_set __user * __user *)(buffer+1)))
- || __get_user(outp, ((fd_set __user * __user *)(buffer+2)))
- || __get_user(exp, ((fd_set __user * __user *)(buffer+3)))
- || __get_user(tvp, ((struct timeval __user * __user *)(buffer+4))))
- return -EFAULT;
- }
- return sys_select(n, inp, outp, exp, tvp);
-}
-
-int sys_uname(struct old_utsname __user * name)
-{
- int err = -EFAULT;
-
- down_read(&uts_sem);
- if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
- err = 0;
- up_read(&uts_sem);
- return err;
-}
-
-int sys_olduname(struct oldold_utsname __user * name)
-{
- int error;
-
- if (!name)
- return -EFAULT;
- if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
- return -EFAULT;
-
- down_read(&uts_sem);
- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
- error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
- error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
- error -= __put_user(0,name->release+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
- error -= __put_user(0,name->version+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
- error = __put_user(0,name->machine+__OLD_UTS_LEN);
- up_read(&uts_sem);
-
- error = error ? -EFAULT : 0;
- return error;
-}
-
-/*
- * We put the arguments in a different order so we only use 6
- * registers for arguments, rather than 7 as sys_fadvise64_64 needs
- * (because `offset' goes in r5/r6).
- */
-long ppc_fadvise64_64(int fd, int advice, loff_t offset, loff_t len)
-{
- return sys_fadvise64_64(fd, offset, len, advice);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 12:16:02 +0000